User's Information Document 1125B User's Information Manual for Endurance EBP Series Modulating Combination Boiler (natural or propane gas) EDP Series Modulating Hydronic Boiler (natural or propane gas) EDN Series Non-ferrous Modulating Hydronic Boiler (natural or propane gas) FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician, qualified in hot water heater and boiler installation and maintenance. Improper installation and/or operation could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death. Improper installation and/or operation will void the warranty. WARNING If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance. Do not touch any electrical switch; do not use any phone in your building. Immediately call your gas supplier from a nearby phone. Follow the gas supplier's instructions. If you cannot reach your gas supplier, call the fire department. Installation and service must be performed by a qualified installer, service agency, or gas supplier. 30-422B
Page 2 LAARS HEATING SYSTEMS TABLE OF CONTENTS SECTION 1. Caring For Your Endurance 1A. General Care... 4 1B. Annual Inspection of Flues and Vents... 4 1C. Shutting Down the Endurance... 4 1D. To Restart Endurance... 4 1E. In the Event of Power Failure... 4 1F. Full Service Every 3 Years... 4 1G. Fault Codes... 7
Endurance User's Information Page 3 FOR YOUR SAFETY READ BEFORE OPERATING WARNING If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand. B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance. Do not touch any electric switch; do not use any phone in your building. Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions. OPERATING INSTRUCTIONS If you cannot reach your gas supplier, call the fire department. C. Turn on gas shutoff valve (located above the combination gas control) so that the handle is aligned with the gas pipe. If the handle will not turn by hand, don't try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion. D. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water. 1. STOP! Read the safety information above on this label. 2. Set the thermostat to lowest setting. 3. Turn off all electric power to the appliance. Gas Shutoff Combination Gas Control 4. This appliance is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand. 5. Remove control access panel, and top front cover. 6. Turn gas shutoff valve clockwise to off. Handle will be horizontal, do not force (see Figures 2 and 3 for location). 7. Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! Follow B in the safety information above on this label. If you don't smell gas, go to next step. 8. Turn gas shutoff valve counterclockwise to on. Handle will be vertical. 9. Replace top front cover and control access panel. 10. Turn on all electric power to appliance, depress on/off button on control panel, depress black button on top of control panel. 11. Set thermostat to desired setting. 12. If the appliance will not operate, follow the instructions To Turn Off Gas To Appliance and call your service technician or gas supplier. TO TURN OFF GAS TO APPLIANCE 1. Set the thermostat to lowest setting. 2. Turn off all electric power to the appliance if service is to be performed. 3. Remove control access panel and top front cover. 4. Turn gas shutoff valve clockwise to off. Do not force. 5. Replace top front cover and control access panel.
Page 4 LAARS HEATING SYSTEMS SECTION 1. Caring For Your Endurance Your Endurance will require very little maintenance. However, as with any fine appliance, there are certain steps you should take to insure continuing optimum performance. 1A. General Care Keep your Endurance area clear and free from combustible materials, gasoline and other flammable vapors and liquids. If you desire, clean the jacket surfaces with a damp cloth and mild soap. Do not use flammable cleaning materials. Keep vent terminal free of obstructions. Do not pile snow against vent terminal. 1B. Annual Inspection of Flues and Vents You should visually inspect the vent pipe once a year. Should any corrosion exist, have the affected parts replaced. On horizontally vented units installed with p/n 2400-326/328 (Direct Vent Kit) inspect the metal vent terminal (see Figure 3) on the outside of the building for corrosion. Replace if necessary. On all models installed without the Direct Vent Kit, clean and inspect the condensate collection and disposal system which is a part of the flue assembly. 1C. Shutting Down the Endurance The need may arise to shut down your Endurance (extended stay away from home, for example). If so, the following steps are required: 1. Switch off main disconnect switch (located on back of control panel). 2. Close gas shutoff valve above combination gas control valve (inside unit). 3. Close main manual gas valve. 4. If freezing is anticipated, drain Endurance and be sure to protect building piping from freezing, also. The above steps may require qualified service personnel. 1D. To Restart Endurance Should the need arise (power interruption, for example), you may have to restart your Endurance. Follow these steps: 1. Momentarily depress reset button on top of control panel. 2. Turn up thermostat to call for heat. 3. In approximately 2 seconds, the blower will operate and ignition should occur after 35-40 seconds. It may take as long as 2½ minutes. 4. If ignition does not occur, wait 5 minutes and then repeat steps 1 through 3. 5. If, after three attempts, you still are unable to achieve ignition, shut down the boiler and call your service technician. If drained, follow these steps: 1. Follow Installation Manual for proper filling and purging. 2. Turn on main manual gas valve. 3. Remove control access panel and top front cover and turn on gas shutoff valve, above combination gas control valve. 4. Switch on main disconnect switch, depress on/ off button on front of control panel, and depress black reset button on top of control panel (pump and blower will start and igniter will be energized, after 35 seconds the gas valve will be energized, and ignition will occur). If ignition does not occur within 2½ minutes switch off main disconnect switch, wait 5 minutes and switch on again. If after three attempts ignition does not occur, initiate shutdown procedure and call for service. 1E. In the Event of Power Failure The Endurance cannot be operated during an electrical power outage. If there is an extended power outage with danger of freezing, then the Endurance (and all other water systems) should be completely drained. When draining the unit, turn off gas and turn off the main power switch. When replacing in service, refer to start-up instruction for proper filling and purging. 1F. Full Service Every 3 Years In addition to the annual visual inspections by the homeowner, a qualified service agency should conduct a detailed inspection of all flue product carrying areas of the boiler and vent system. This should be done in accordance with the service instruction in the Installation and Operating Instructions Manual for the Endurance. Caution Do not use this boiler if any part has been under water. Immediately call a qualified service technician to inspect the boiler and to replace any part of the control system and any gas control which has been under water. WARNING Should overheating occur or the gas supply fails to shut off, do not turn off or disconnect the electrical supply to the pump. Instead, shut off the gas supply at a location external to the Endurance. FOR SERVICE Contact your installing contractor, gas utility, Laars dealer or call Laars for the nearest authorized representative in your area.
Endurance User's Information Page 5 Gas Shutoff Gas Shutoff Figure 1. EBP Assembly View. Figure 2. EDP/EDN Assembly View. Outside Wall Vent Terminal Figure 3. Vent Terminal.
Page 6 LAARS HEATING SYSTEMS Removable Control Access Panel Temperature LED Display Removable Top Front Cover Pressure Gauge Reset Button Return Direct Vent Kit p/n 2400-326/ 328 Heating Systems Fittings Supply Main Disconnect Switch Field Wiring Box Relief Cap Gas Supply Manual Main Shutoff Domestic Hot Water Connections Drip Leg Removable Lower Front Cover Front View Side View Rear View Figure 4. EBP Series. Pressure Gauge Supply Temperature LED Display Removable Control Access Panel Reset Button Relief Gas Supply Manual Main Shut Off Removable Front Cover Return Heating Systems Fittings Drip Leg Cap Field Wiring Box Boiler Drain Main Disconnect Switch Front View Side View Rear View Figure 5. EDP/EDN Series.
Endurance User's Information Page 7 Message Identifies Boiler Flow Temp (Supply) Tank Temp Return Temp (Boiler Inlet) On Off Lock Out Third Failure (Failure Level) Fault Code (Three), there are 8 different Fault Codes, defined in Section 1G of this manual. Freeze Protection To read or change mode During operation display will default to supply temperature. Press temperatures button repetitively. To sequence through three temperature indicators. Boiler in standby mode: will operate on call for domestic water or heat zone demand. Boiler switched OFF. Press ON/OFF button for ON. After three trials for ignition, will stand in lockout. Press reset on top of panel to retry. To monitor, press and hold temperature button for five seconds. Display will indicate first of eight fault memories (FL1). Then display one of six fault conditions that occurred previous. Display will sequence through the eight memories (see Section 1G for fault codes). Sensor has detected return temperature below 39 F (4 C). Figure 6. LED Display Code Identification. 1G. Trouble Shooting - Fault Codes The Endurance boiler is controlled by a Pactrol integrated boiler control (PCB) which provides eight fault codes with eight memories. To obtain fault messages press-in on the message center fault button until the first fault code (FLI) is displayed. The last recorded fault will appear e.g. F-4 (flow thermister faulty - open or shorted). The control will then sequence through all eight memories, indicating alternately the fault number and the fault code (FL1, F-?; FL2, F=?;, FL8, F=?). Fault Code Identification The following eight fault codes may be observed: F- Error corrected, control in auto reset time period (10 seconds) F-0 No fault has occurred F-1 Error occured reading fault logic of main control F-2 Over heat thermostat has operated (open circuit) F-3 Fan fault F-4 Flow thermistor faulty (open or short circuited) F-5 Tank thermistor faulty (open or short circuited) (Combi unit only) F-6 Return thermistor faulty (open or short circuited)
30-422B Waterpik Technologies, Inc. 6000 Condor Drive, Moorpark, CA 93021 805.529.2000 FAX 805.529.5934 20 Industrial Way, Rochester, NH 03867 603.335.6300 FAX 603.335.3355 480 S. Service Road West, Oakville, Ontario, Canada L6K 2H4 905.844.8233 FAX 905.844.2635 www.laars.com Litho in U.S.A. Laars Heating Systems 0006 Document 1125B